diff --git a/packages/block-library/src/gallery/index.php b/packages/block-library/src/gallery/index.php
index a9765c344323ab..a159de4df173e8 100644
--- a/packages/block-library/src/gallery/index.php
+++ b/packages/block-library/src/gallery/index.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * Server-side rendering of the `core/image` block.
+ * Server-side rendering of the `core/gallery` block.
  *
  * @package WordPress
  */
@@ -13,11 +13,10 @@
  * we add a custom `data-id` attribute before rendering the gallery
  * so that the Image Block can pick it up in its render_callback.
  *
- * @param  array $parsed_block A single parsed block object.
- *
- * @return array               The migrated block object.
+ * @param array $parsed_block The block being rendered.
+ * @return array The migrated block object.
  */
-function render_block_core_gallery_data( $parsed_block ) {
+function block_core_gallery_data_id_backcompatibility( $parsed_block ) {
 	if ( 'core/gallery' === $parsed_block['blockName'] ) {
 		foreach ( $parsed_block['innerBlocks'] as $key => $inner_block ) {
 			if ( 'core/image' === $inner_block['blockName'] ) {
@@ -31,14 +30,14 @@ function render_block_core_gallery_data( $parsed_block ) {
 	return $parsed_block;
 }
 
-add_filter( 'render_block_data', 'render_block_core_gallery_data' );
+add_filter( 'render_block_data', 'block_core_gallery_data_id_backcompatibility' );
 
 /**
  * Registers the `core/gallery` block on server.
  * This render callback needs to be here
  * so that the gallery styles are loaded in block-based themes.
  */
-function gutenberg_register_block_core_gallery() {
+function register_block_core_gallery() {
 	register_block_type_from_metadata(
 		__DIR__ . '/gallery',
 		array(
@@ -49,4 +48,4 @@ function gutenberg_register_block_core_gallery() {
 	);
 }
 
-add_action( 'init', 'gutenberg_register_block_core_gallery', 20 );
+add_action( 'init', 'register_block_core_gallery', 20 );
diff --git a/packages/block-library/src/image/index.php b/packages/block-library/src/image/index.php
index c3f22c04571553..f8f7066a970d88 100644
--- a/packages/block-library/src/image/index.php
+++ b/packages/block-library/src/image/index.php
@@ -11,7 +11,7 @@
  *
  * @param  array $attributes The block attributes.
  * @param  array $content    The block content.
- * @return string            Returns the block content with the data-id attribute added.
+ * @return string Returns the block content with the data-id attribute added.
  */
 function render_block_core_image( $attributes, $content ) {
 	if ( isset( $attributes['data-id'] ) ) {